Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/94875
Title: Stereochemical investigations of coordinated sulfur stereocenters. X-ray structures of diastereomers of (-)589-[Pd{(R)-CH3CH(1-C10H 6)NMe2-C2,N}(R/S)-{Ph2PCH 2SMe-P,S}]PF6
Authors: Chooi, S.Y.M. 
Hor, T.S.A. 
Leung, P.-H. 
Mok, K.F. 
Issue Date: 1992
Citation: Chooi, S.Y.M.,Hor, T.S.A.,Leung, P.-H.,Mok, K.F. (1992). Stereochemical investigations of coordinated sulfur stereocenters. X-ray structures of diastereomers of (-)589-[Pd{(R)-CH3CH(1-C10H 6)NMe2-C2,N}(R/S)-{Ph2PCH 2SMe-P,S}]PF6. Inorganic Chemistry 31 (8) : 1494-1500. ScholarBank@NUS Repository.
Abstract: The reaction between bis(μ-chloro)bis[(R)-1-[(dimethylamino)ethyl]naphthylenyl-C 2,N]dipalladium(II) and 2 mol of the bidentate Ph2PCH2CH2SMe gave a pair of internal diastereomeric complex cations arising from the coordinated sulfur stereocenter. The hexafluorophosphate salt of the diastereomeric mixture crystallizes as a compound with [α]D -35° (CH2Cl2) in the triclinic space group P1 with a = 7.8690 (10) Å, b = 17.837 (2) Å, c = 21.830 (2) Å, α = 82.86 (1)°, β = 87.19 (1)°, γ = 83.39 (1)°, and Z = 4 (R = 0.0412 and Rw = 0.0666). In solution, the complexes exhibit facile intramolecular asymmetric equilibration between diastereomers epimeric at sulfur at room temperature. A coalescence temperature of -90°C was recorded for the interconversion by variable-temperature NMR spectroscopy. Similar behavior was observed for analogous complexes of Ph2AsCH2CH2SMe and Me2AsCH2CH2SMe. © 1992 American Chemical Society.
Source Title: Inorganic Chemistry
URI: http://scholarbank.nus.edu.sg/handle/10635/94875
ISSN: 00201669
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.

Page view(s)

38
checked on Oct 12, 2018

Google ScholarTM

Check


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.